Nonstop flight route between Tehran, Iran and Chicago, Illinois, United States:

About this route:

A direct, nonstop flight between Mehrabad Airport (THR), Tehran, Iran and Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States would travel a Great Circle distance of 6,484 miles (or 10,435 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Mehrabad Airport and Chicago O'Hare International Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Mehrabad Airport and Chicago O'Hare International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Mehrabad Airport (THR):

• The airport has the head offices of Iran Air and the Iran Civil Aviation Organization.
• The furthest airport from Mehrabad Airport (THR) is Totegegie Airport (GMR), which is located 11,490 miles (18,491 kilometers) away in Mangareva, Gambier Islands, French Polynesia.
• The closest airport to Mehrabad Airport (THR) is Tehran Imam Khomeini International Airport (IKA), which is located 21 miles (34 kilometers) SSW of THR.
• Mehrabad Airport (THR) has 3 runways.
• In addition to being known as "Mehrabad Airport", another name for THR is "فرودگاه مهرآباد".
• Mehrabad Airport handled 13,163,368 passengers last year.
• IKA Airport was scheduled to open in 2004 with international flights gradually changing from Mehrabad starting with flights to countries bordering the Persian Gulf.

Facts about Chicago O'Hare International Airport (ORD):

• In 1949, the airport was renamed "O'Hare International Airport" to honor Edward O'Hare, the U.S.
• Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• A$80 million renovation of Concourse G in Terminal 3 designed by Teng & Associates, Inc.
• The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
• O'Hare has four numbered passenger terminals with nine lettered concourses and a total of 182 aircraft gates.
• In 1953, while traveling to an airshow at Naval Air Station Glenview in Chicago, Illinois, Blue Angels pilot LT Harding MacKnight experienced an engine flameout in his F7U Cutlass, forcing him to make an emergency landing at NAS Glenview.
• During this era international flights used Terminal 1.
• The airport was constructed in 1942–43 as a manufacturing plant for Douglas C-54s during World War II.
• The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
• Chicago O'Hare International Airport (ORD) has 8 runways.